The Proceedings of the National Academy of Sciences of the United States of America, usually referred to as PNAS, is the official journal of the United States National Academy of Sciences (NAS). PNAS is an important scientific journal that printed its first issue in 1915 and continues to publish highly cited research reports, commentaries, reviews, perspectives, feature articles, profiles, letters to the editor, and actions of the Academy. Coverage in PNAS broadly spans the biological, physical, and social sciences. Although most of the papers published in the journal are in the biomedical sciences, PNAS recruits papers and publishes special features in the physical and social sciences and in mathematics. PNAS is published weekly in print, and daily online in PNAS Early Edition. PNAS was established by NAS in 1914, with its first issue published in 1915. The NAS itself had been founded in 1863 as a private institution, but chartered by the US Congress, with the goal to "investigate, examine, experiment, and report upon any subject of science or art." By 1914, the Academy was well established.
Physicists have used a machine-learning method to identify surprising new twists on the non-reciprocal forces governing a many-body system.
General Physics
9 hours ago
1
154
Florida panthers are making a comeback. That's the conclusion a team including UCLA biologists has come to following an attempt at a genetic rescue for the cat that began 30 years ago.
Plants & Animals
Jul 30, 2025
0
54
Western biologists have developed an innovative way to reconstruct how crickets sing, based on the physical formation of the chirping insects' wings, using measurements from preserved samples and computational modeling.
Plants & Animals
Jul 30, 2025
0
2
Multidrug-resistant bacteria kill five million people each year, with newly resistant germs emerging faster than scientists can develop treatments.
Molecular & Computational biology
Jul 29, 2025
0
35
Scientists have discovered that jewel wasps can slow down their biological rate of aging. Their study of jewel wasps, known for their distinctive metallic colors, has shown that they can undergo a kind of natural "time-out" ...
Plants & Animals
Jul 29, 2025
0
58
Many soil microbes play a vital role in ecosystems, as they help plants access nutrients and water and assist in stress tolerance, such as during drought, and to defend against pathogens.
Ecology
Jul 29, 2025
0
1
A lot of attention has been paid to how climate change can drive biodiversity loss. Now, MIT researchers have shown that the reverse is also true: Reductions in biodiversity can jeopardize one of Earth's most powerful levers ...
Earth Sciences
Jul 28, 2025
0
34
Florida's Avon Park bombing range is teeming with life. Over 40 at-risk species occupy this 106,000-acre expanse used by the U.S. Air Force for training exercises.
Plants & Animals
Jul 28, 2025
0
133
A large international team has genetically mapped glasswing butterflies found across Central and South America, rewriting the evolutionary tree and highlighting six new species.
Plants & Animals
Jul 28, 2025
0
67
Crystals and glasses have opposite heat-conduction properties, which play a pivotal role in a variety of technologies. These range from the miniaturization and efficiency of electronic devices to waste-heat recovery systems, ...
General Physics
Jul 28, 2025
0
67
